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Finding the Fourth Proportional to 19,095.30, 28,578.15 and 19,095.30

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Solution

The fourth proportional to 19,095.30, 28,578.15 and 19,095.30 is: 28,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,095.30 : 28,578.15 = 19,095.30 : x
  2. Step 2: Convert to fraction form
    19,095.30/28,578.15 = 19,095.30/x
  3. Step 3: Cross multiply
    19,095.30x = 28,578.15 × 19,095.30
  4. Step 4: Simplify right side
    19,095.30x = 545,708,347.70
  5. Step 5: Solve for x
    x = 545,708,347.70/19,095.30
  6. Step 6: Final answer
    x = 28,578.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.